采自东南亚的变色卧孔菌一新种

摘要

报道了采自新加坡的多孔菌一新种,硫色变色卧孔菌,并对该种进行了描述和显微绘图.该种的主要特征是子实体一年生,平伏,新鲜时软,硫磺色,干后浅橄榄色至蜜黄色,单系菌丝系统,生殖菌丝具简单分隔,存在菌丝状囊状体和锥形拟囊状体,担孢子近球形至球形,具一大液泡.基于ITS和LSU序列的系统发育分析表明该新种属于变色卧孔菌属分支的一个明确的支系.%A new polyporoid fungus,Physisporinus sulphureus,is described from Singapore,Southeast Asia.It is characterized by annual,resupinate and soft basidiocarps with sulphurous hymenophores when fresh and olivaceous buff to honey-yellow when dry,a monomitic hyphal system,simply septate generative hyphae,the presence of hyphoid cystidia and subulate cystidioles,and subglobose to globose basidiospores with a guttule.Molecular phylogeny inferred from ITS and LSU sequences data strongly supported P.sulphureus as a distinctive species belonging to Physisporinus.The new species is described and illustrated in this paper.